Classifying boolean values
It's likely that class is numeric and you actually want factor (regression tree vs classification tree). str(echoknn.train) will show you. By saying, "I have to build a tree classifier" you make me think that this is a course assignment. If it is, you should perhaps talk to your instructor. If not, then a more detailed and reproducible example will usually get you a more informative answer, since it will allow people to actually run and debug your code. Sarah
On Tue, Jun 7, 2011 at 11:47 AM, Grifone <fabio.podda at alice.it> wrote:
Hi to all, I'm new to this forum and new to R. I have to build a tree classifier that has boolean values as response. When I build the tree with: echoknn.tree <- tree(class ~ ., data=echoknn.train) where "class" is a coloumn of my dataset (echoknn.train) of boolean values, the result is a tree where leaf nodes are numbers in the range [0,1]; but this isn't the result that I expect to have. I'd want that result of classifier is TRUE or FALSE. Can someone help me? Thanks. Fabio
Sarah Goslee http://www.functionaldiversity.org